Pump-cap.



L. M. RICH.

PUMP GAP.

. APPLICATION FILED MAY 20, 1910.

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PUMP-GAP.

Specification of Letters Patent.

Patented June 11, 1912.

Application filed May 20, 1910. Serial No. 562,545.

To all whom it may concern:

Be it known that I, Lns'rnn M. RIoH, a citizen of the United States, anda resident of Cincinnati, in the county of Hamilton and State of Ohio,have invented certain new and useful Improvements in Pump- Caps, ofwhich the following is a full and clear specification, reference beinghad to the accompanying drawings, in which Figure 1 is a verticalsectional view of the upper portion of a pump provided with myattachment; Fig. 2 a similar view at right angles to the plane on whichFig. 1 is taken; and Fig. 3 is an under plan view of the cap showing themanner in which the slide is held in place. Fig. 4 is a perspective viewof a disk for supporting the slide.

The object of this invention is to provide a simple closure device forthe slot formed in the cap for the passage of the pump rod, this devicebeing so arranged that the slot is at all times closed to the ingress ofall foreign objects which would be likely to injure the pump piston andvalves and yet open to the ingress of water when it is desired to pourwater down into the pump for the purpose of priming it, as more fullyhereinafter set forth.

a designates the usual pump cap which is fastened to the usual pumpcasing b, the top of said pump cap being provided with the usual holefor the passage of the pump rod, this hole being transversely elongatedto form a slot which permits the pump rod to swing laterally as it ismoved up and down.

I-Ield against the under side of the top wall of the cap is a slidingplate a which is provided with a hole midway its length for the passageof the pump rod and which is sufficiently wide to cover the slot in thecap. This plate is held up against the cap by a disk (I which fitswithin the circular cap and is held against the under side of the topwall thereof by pins or lugs c driven into or cast on the cap body. Thetop edge of the pump casing also serves to assist in holding this diskin place. This disk holds the slide d loosely up against the captop-wall, and the disk is provided with a transverse channel or groove fin which the slide freely works, and said channeled portion is providedwith a longitudinal slot 9 which is coincident with the slot in the capand is long enough to permit the lateral swing or shifting of the pumprod.

It will be observed thatas the pump rod is moved up and down and shiftedor swung laterally, the slide 0 slides back and forth in the channel inthe confining disk, thus always keeping the slot in the cap closedagainst egress of solid foreign bodies. The fit of the part-s however issufficiently free to permit water to be poured down into the pump forpriming purposes. The channel in the disk forms a guide for the slidingplate, and the disk is prevented from rotatively shifting by means ofthe pins or lugs c which engage notches in the edge of the disk. Thisdevice is preferably employed with a. pump cap of the type shown, in

which a sort of hopper is formed on the cap by means of a flange h toreceive, funnellike, the priming water, but it is obvious that it may beemployed with other forms of caps.

It will be understood that the disk (Z may be fastened to the cap in anysuitable way. For instance, in addition to, or in lieu of, the lugs orpins 6, I may fasten the disk by means of screws 9 shown in Fig. 3.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. In combination with a pump casing and a cap secured thereon, said capbeing provided with a slot in its top wall and with a funnel or hoppersurrounding the same, a plate fastened to the under side of said cap andprovided with a slot coincident with the aforesaid slot in the cap, asliding plate provided with a hole for the passage of the pump rod andslidingly confined between said plate and the under side of the pumpcap, the fit of the parts being sufliciently loose to permit water to berun 'down from the hopper or funnel into the pump casin for the purposeset forth.

2. In combination with a pump casing and a cap secured thereon, said capbeing provided with a slot in its top wall and with a funnel or hoppersurrounding the same, a plate fastened to the under side of said cap andprovided with a slot coincident with the aforesaid slot in the cap, asliding plate provided with a hole for the passage of the pump rod andslidingly confined be- In testimony whereof I hereunto affix mysignature in the presence of two witnesses 10 this 6th day of May, 1910.

LESTER M. RICH. Witnesses C. J. MoDIARMn), ABBIE RARDOU.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, D. C.

